Finding the Fourth Proportional to 305,325.20, 421,072.99 and 190,614.47
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Solution
The fourth proportional to 305,325.20, 421,072.99 and 190,614.47 is: 262,875.78
Step by Step Solution
- Step 1: Write the proportion equation
305,325.20 : 421,072.99 = 190,614.47 : x - Step 2: Convert to fraction form
305,325.20/421,072.99 = 190,614.47/x - Step 3: Cross multiply
305,325.20x = 421,072.99 × 190,614.47 - Step 4: Simplify right side
305,325.20x = 80,262,602,238.26 - Step 5: Solve for x
x = 80,262,602,238.26/305,325.20 - Step 6: Final answer
x = 262,875.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.